I'm not sure "don't want to understand the music they're playing" automatically means "not very good guitarists".

Bobert - I'll have to give EBEBBE a try. One of my favourites is DADDAD (the "g" string tuned way down to D, in unison with the regular "D" string"). Gives a nice haunting sound with a slide. Similarly I really like triple C on the banjo (gCGCC). I'm in a similar position to you regarding theoretical knowledge but both tunings can give an eerie mountain sound.

Cheers,

Pete.